The Radical Republicans opposed Lincoln's plan, as they thought it too lenient toward the South.
The answer would be, "Atilla the Hun".
The book that brought the public's attention to damage caused by pollution in the early 1960's is Silent spring. The correct option among all the options that are given in the question is option "b". This book was actually written in the year 1962 by Rachel Carson. It was a book concerning environmental science.
Make use of what concept?